For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Vehicle Care
California Proposition 65 WarningHands-Free Phone
Using Bluetooth Voice Recognition
To use voice recognition, press the
button on the steering wheel.
Use the commands below for the various voice features. For additional information,
say “Help” while in a voice recognition menu.
Making a Call
Calls can be made using the following commands.
...
Rear Wheel Bearing and Hub Replacement (Disc Brake)
Special Tools
EN 45059 Torque Angle Sensor Kit
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Raise and suitably support the vehicle. Refer to Lifting and
Jacking the Vehicle.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and
...
How To Indentify Plastic Parts
Plastic parts can be identified by the SAE code, which is usually found on
the rear of the part, and/or by the characteristics of the plastic.
Knowing the type of plastic aids in selecting the proper repair materials and in
selecting the proper repair procedure.
Look for the SAE code s ...